Adam Savage and Jamie Hyneman have been co-hosts of MythBusters for 13 seasons.

They’ve filmed more than 200 episodes and tested 960 myths (with about just as many explosions), so we asked them to suss out fact from fiction — and whether they could remember their earliest episodes.

Adam: That is actually one of the ones we wanted to test on the show. I think that’s a myth. What part of your body is exposed in the cold? It’s usually your head, so we wanted to test it.

It’s something we haven’t yet tested — cold-weather myths where specifically we expose (gestures around head) exactly this amount of square footage of your body, watch it on a thermal camera and see, because I don’t think it’s true. I don’t think there’s anything special about the blood vessels here that you’d lose more heat through other body parts.

Adam: Yeah, we did that. No. The best part about testing that is when you go to the Empire State Building and you go to levels below the observation deck, they’re all littered with change. Hundreds and hundreds of dollars.

Adam: It’s something we’ve always wanted to test on the show. I think that’s a myth, but it’s devilishly hard to test. It’s 90% cellulose, which we can’t digest anyway.

Jamie: It’s definitely a myth. There’s a particular sugar that is in that — I want to say it’s the same as a milk sugar. There’s a bunch of different sugars, and it contains a type of sugar that’s specific to celery and a few other things.